1998 Chevy Astro vents

Tiny
DENNIS R
  • MEMBER
  • 1998 CHEVROLET ASTRO
  • 6 CYL
  • AWD
  • AUTOMATIC
  • 103,000 MILES
My air cond and heater stopped blowing from the air vents on the front dash, only blows from defrost, whats my problem.
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Thursday, August 20th, 2009 AT 6:45 AM

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Tiny
TECHMAN1
  • MEMBER
There is a little black plastic 4 millimeter vacuum line that supplies vacuum to your vent controls. It starts on the top of the intake just behind the A/C compressor and then runs to the left under the big black rubber air intake and connects on a plug on the firewall just behind your washer fluid/radiator overflow reservoir. It will be baked and cracked somewhere around halfway. You can splice the break with an inch of weedeater fuel line. To replace the line, you have to pull the cowling cover behind the glovebox inside the van, because you can not get your hand to the plug behind the A/C compressor. If you want to redo all your baked vacuum lines, pull the fan shroud cover and the vacuum canister is about a foot below your washer fluid/radiator overflow reservoir.

Ken
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Wednesday, August 26th, 2009 AT 11:18 PM

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